Is this a design template?

Question

In our entire code base, we have this repeating pattern where there is an interface with one method. Is this a real design? If so, what is it and what are the benefits?

Here are some examples:

    public interface IRunnable
    {       
        void Run();     
    }

    public interface IAction
    {
        void Perform();
    }

    public interface ICommand
    {
        void Execute(ActionArgs _actionargs);
    }

Answer 1

I saw this as a Team Template .

I first found out about this by reading Uncle Bob's Agile Principles, Patterns and Practices in C # .

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Answer 2

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Answer 3

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, : http://en.wikipedia.org/wiki/Command_pattern

Answer 5

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Answer 7

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Dim runnableObjects As List(Of Object)
runnableObjects.Add(New MyRunnableObject1)
runnableObjects.Add(New MyRunnableObject2)

For Each o As IRunnable In runnableObjects
  o.Run()
Next

Answer 8

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